Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phase
[Display omitted] Complex intermetallic materials known as MAX phases exhibit exceptional properties from both metals and ceramics, largely thanks to their nanolayered structure. With high-resolution scanning transmission electron microscopy supported by atomistic modelling, we reveal atomic feature...
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| Veröffentlicht in: | Scripta materialia 2022-03, Vol.210, Article 114425 |
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| container_title | Scripta materialia |
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| creator | Guénolé, Julien Taupin, Vincent Vallet, Maxime Yu, Wenbo Guitton, Antoine |
| description | [Display omitted]
Complex intermetallic materials known as MAX phases exhibit exceptional properties from both metals and ceramics, largely thanks to their nanolayered structure. With high-resolution scanning transmission electron microscopy supported by atomistic modelling, we reveal atomic features of a nano-twist phase in the nanolayered Ti3AlC2. The rotated hexagonal single-crystal is encompassed within basal symmetric twist interfaces similar to grain boundaries. In particular, we show that air-oxidation at 1000 ∘C can form a twisted phase that leads to the formation of interfacial dislocation networks with screw characters or to severe interfacial reconstructions. Additionally, we explore the contribution of disclinations to the representation by continuum models of the stress field generated by such nano-twist defect in the Ti3AlC2 bulk phase. The occurrence of this unexpected defect is foreseen to impact the physical response of this nanolayered-based material and, as such, supports property-by-design approaches. |
| doi_str_mv | 10.1016/j.scriptamat.2021.114425 |
| format | Article |
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Complex intermetallic materials known as MAX phases exhibit exceptional properties from both metals and ceramics, largely thanks to their nanolayered structure. With high-resolution scanning transmission electron microscopy supported by atomistic modelling, we reveal atomic features of a nano-twist phase in the nanolayered Ti3AlC2. The rotated hexagonal single-crystal is encompassed within basal symmetric twist interfaces similar to grain boundaries. In particular, we show that air-oxidation at 1000 ∘C can form a twisted phase that leads to the formation of interfacial dislocation networks with screw characters or to severe interfacial reconstructions. Additionally, we explore the contribution of disclinations to the representation by continuum models of the stress field generated by such nano-twist defect in the Ti3AlC2 bulk phase. The occurrence of this unexpected defect is foreseen to impact the physical response of this nanolayered-based material and, as such, supports property-by-design approaches.</description><identifier>ISSN: 1359-6462</identifier><identifier>EISSN: 1872-8456</identifier><identifier>DOI: 10.1016/j.scriptamat.2021.114425</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Air-oxidation ; Atomistic modelling ; Condensed Matter ; Disclination ; Dislocation ; HR-TEM ; Materials and structures in mechanics ; Materials Science ; MAX phase ; Mechanics ; Mechanics of materials ; Physics ; Twist boundary</subject><ispartof>Scripta materialia, 2022-03, Vol.210, Article 114425</ispartof><rights>2021 Acta Materialia Inc.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-3288-8951 ; 0000-0002-1508-787X ; 0000-0002-2469-0179 ; 0000-0002-7769-590X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.scriptamat.2021.114425$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,780,784,885,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://hal.univ-lorraine.fr/hal-03207521$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Guénolé, Julien</creatorcontrib><creatorcontrib>Taupin, Vincent</creatorcontrib><creatorcontrib>Vallet, Maxime</creatorcontrib><creatorcontrib>Yu, Wenbo</creatorcontrib><creatorcontrib>Guitton, Antoine</creatorcontrib><title>Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phase</title><title>Scripta materialia</title><description>[Display omitted]
Complex intermetallic materials known as MAX phases exhibit exceptional properties from both metals and ceramics, largely thanks to their nanolayered structure. With high-resolution scanning transmission electron microscopy supported by atomistic modelling, we reveal atomic features of a nano-twist phase in the nanolayered Ti3AlC2. The rotated hexagonal single-crystal is encompassed within basal symmetric twist interfaces similar to grain boundaries. In particular, we show that air-oxidation at 1000 ∘C can form a twisted phase that leads to the formation of interfacial dislocation networks with screw characters or to severe interfacial reconstructions. Additionally, we explore the contribution of disclinations to the representation by continuum models of the stress field generated by such nano-twist defect in the Ti3AlC2 bulk phase. The occurrence of this unexpected defect is foreseen to impact the physical response of this nanolayered-based material and, as such, supports property-by-design approaches.</description><subject>Air-oxidation</subject><subject>Atomistic modelling</subject><subject>Condensed Matter</subject><subject>Disclination</subject><subject>Dislocation</subject><subject>HR-TEM</subject><subject>Materials and structures in mechanics</subject><subject>Materials Science</subject><subject>MAX phase</subject><subject>Mechanics</subject><subject>Mechanics of materials</subject><subject>Physics</subject><subject>Twist boundary</subject><issn>1359-6462</issn><issn>1872-8456</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpFkE1Lw0AURQdRsFb_w2xdJM6bz3QZg7VCxU0Fd8N08kKnpEnJjBX_vakRXL3L5XB5HEIosBwY6Id9Hv0QjskdXMo545ADSMnVBZlBYXhWSKUvxyzUItNS82tyE-OeMaaBw4xUS3Tpc8BI-4Y62rmuz9JXiIkedy4iDR1NO_ztW_eNA9Z0E0TZVpy-lh8TdEuuGtdGvPu7c_K-fNpUq2z99vxSlesMuSxSphunCmgAtNwKuRCKKWW0HqMpCr7g3NQSnNfotVeFAdlo47fItGCaSW7EnNxPuzvX2uMQDm74tr0LdlWu7bljgjOjOJzEyD5OLI4PnQIONvqAncc6DOiTrftggdmzQru3_wrtWaGdFIoft6xlVQ</recordid><startdate>20220315</startdate><enddate>20220315</enddate><creator>Guénolé, Julien</creator><creator>Taupin, Vincent</creator><creator>Vallet, Maxime</creator><creator>Yu, Wenbo</creator><creator>Guitton, Antoine</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-3288-8951</orcidid><orcidid>https://orcid.org/0000-0002-1508-787X</orcidid><orcidid>https://orcid.org/0000-0002-2469-0179</orcidid><orcidid>https://orcid.org/0000-0002-7769-590X</orcidid></search><sort><creationdate>20220315</creationdate><title>Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phase</title><author>Guénolé, Julien ; Taupin, Vincent ; Vallet, Maxime ; Yu, Wenbo ; Guitton, Antoine</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e248t-6fa581f1164b3493505576634978829227d41ac6ec6c58714f67cbe0630604273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Air-oxidation</topic><topic>Atomistic modelling</topic><topic>Condensed Matter</topic><topic>Disclination</topic><topic>Dislocation</topic><topic>HR-TEM</topic><topic>Materials and structures in mechanics</topic><topic>Materials Science</topic><topic>MAX phase</topic><topic>Mechanics</topic><topic>Mechanics of materials</topic><topic>Physics</topic><topic>Twist boundary</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guénolé, Julien</creatorcontrib><creatorcontrib>Taupin, Vincent</creatorcontrib><creatorcontrib>Vallet, Maxime</creatorcontrib><creatorcontrib>Yu, Wenbo</creatorcontrib><creatorcontrib>Guitton, Antoine</creatorcontrib><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Scripta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guénolé, Julien</au><au>Taupin, Vincent</au><au>Vallet, Maxime</au><au>Yu, Wenbo</au><au>Guitton, Antoine</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phase</atitle><jtitle>Scripta materialia</jtitle><date>2022-03-15</date><risdate>2022</risdate><volume>210</volume><artnum>114425</artnum><issn>1359-6462</issn><eissn>1872-8456</eissn><abstract>[Display omitted]
Complex intermetallic materials known as MAX phases exhibit exceptional properties from both metals and ceramics, largely thanks to their nanolayered structure. With high-resolution scanning transmission electron microscopy supported by atomistic modelling, we reveal atomic features of a nano-twist phase in the nanolayered Ti3AlC2. The rotated hexagonal single-crystal is encompassed within basal symmetric twist interfaces similar to grain boundaries. In particular, we show that air-oxidation at 1000 ∘C can form a twisted phase that leads to the formation of interfacial dislocation networks with screw characters or to severe interfacial reconstructions. Additionally, we explore the contribution of disclinations to the representation by continuum models of the stress field generated by such nano-twist defect in the Ti3AlC2 bulk phase. The occurrence of this unexpected defect is foreseen to impact the physical response of this nanolayered-based material and, as such, supports property-by-design approaches.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.scriptamat.2021.114425</doi><orcidid>https://orcid.org/0000-0002-3288-8951</orcidid><orcidid>https://orcid.org/0000-0002-1508-787X</orcidid><orcidid>https://orcid.org/0000-0002-2469-0179</orcidid><orcidid>https://orcid.org/0000-0002-7769-590X</orcidid><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | Air-oxidation Atomistic modelling Condensed Matter Disclination Dislocation HR-TEM Materials and structures in mechanics Materials Science MAX phase Mechanics Mechanics of materials Physics Twist boundary |
| title | Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phase |
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